Add in a quick generator for version 4 UUIDs

Whiteknight · Dec 1, 2011 · 983058f · 983058f
1 parent d1b670e
commit 983058f
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Showing 2 changed files with 18 additions and 1 deletion.
diff --git a/setup.winxed b/setup.winxed
@@ -263,7 +263,8 @@ function setup_stable_libraries(var rosella)
         "random/Random",
         "random/RandomNumber",
         "random/randomnumber/BoxMullerNormal",
-        "random/randomnumber/MersenneTwister"
+        "random/randomnumber/MersenneTwister",
+        "random/uuid/V4"
     );
 
     // Working with commandline arguments

diff --git a/src/random/uuid/V4.winxed b/src/random/uuid/V4.winxed
@@ -0,0 +1,16 @@
+class Rosella.Random.UUID.V4
+{
+    function get()
+    {
+        var rand = Rosella.Random.default_uniform_random();
+        string hex[] = ["0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "A", "B", "C", "D", "E", "F"];
+        string s[] = [];
+        for (int i = 0; i < 36; i++)
+            s[i] = hex[int(rand.get_range(0, 16))];
+        s[14] = hex[4];
+        int s19 = (int(rand.get_range(0, 16)) & 0x03) | 0x08;
+        s[19] = hex[s19];
+        s[8] = s[13] = s[18] = s[23] = "-";
+        return join("", s);
+    }
+}